Protective means for hydrocarbon motors



Jan. 5 1926. 1,568,187

' J. F. SEARING v PROTECTIVE MEANS F( )R HYljROCARBON MOTORS Filed April20, 1925 INVENTOR.

ATTORNEY" Patented Jan. 5, 1926.

UNITED s-TArEs JOHN r. sEAnIne, or rmwnoormnnn, NEW .Yonx.

PROTECTIVE MEANS FOR HYDROCARBON MOTORS.

Application filed April 20, 1925.

To all whom it may concern:

Be it known that 1, JOHN F. SEARING, a citizen of the United States, anda resident of New Rochelle, in the county of estohester and State of NewYork, have invented certain new and useful Protective Means forHydrocarbon Motors, of which the following is a specification sufiicientto enable those skilled in the art to which the invention appertains toutilize the same.

My invention relates to hydro-carbon motors generally, but especially tothose used on automobiles, motor trucks, and for analogous purposes; myobject being to obviate all danger of the burning out or deteriorationof operative bearings from lack of suitable lubrication, and to this endI utilize the oil itself in the crank case or other oil receptacle orreservoir to cause a warning when the level thereof falls below aprescribed degree of safety,-the invention consisting primarily andessentially in the control and actuation by means of a valve connectedwith the indicator float in the oil chamber, of an alarm sounded by theadmission of air under pressure thereto, said air pressure being derivedfrom the air tank connected in the usual manner with the carburetor ofthe motor, all as hereinafter fully set forth. and described and claimedspecifically.

In the accompanying drawings I illustrate, more or less symbolically anddiagrammatically, a practical embodiment of the essential features of myinvention, although I do not restrict myself to the identicalconstruction and arrangement of parts and ap purtenances shown-by way ofexemplification, since changes may be made in minor details, andequivalent mechanical expedients resorted to, with like results, andwithout departing from the spirit and intent of my invention in thisrespect.

With this understanding Fig. 1, represents the relative positions of theoperative parts when the signal valve is closed; and

Fig. 2, the same when the said valve is opened to sound the alarm.

In the said drawings C, represents the carburetor of the motorcommunicating with Serial No. 24,704.

the air pressure tank A, by a pipe a, as heretofore. Connected with thisair pipe a, or directly with the tank A, if preferred, is asupplementary air pipe at, which communicates also with a valve chambercasing A, in which is positioned a slidable valve piston p, normallyclosing communication (as in Fig. 1) between the air inlet port a andthe outlet port a leading to the alarm signal device a.

The slidable valve piston p, fits snugly within the casing A, and ispivotally connected by a rod p, with the pointer or indi- Gator: hand2', of the indicator dial I, the said indicator hand i, being in turnpivotally connected through the medium of its lateral extension 2', andthe link 7, with the float F, 1n the crank case K, or equivalent oilreservoir or chamber.

Figure 1 shows the parts in position when the case K is well suppliedwith oil. Figure 2 shows the position of the parts when the oil hasfallen to a dangerous level. In the former case, Figure 1, the piston 12is in position to' close the outlet passage through the pipe a. This isautomatically controlled by the quantity vof oil in the case K.

The alarm signal device may consist 01 a whistle, buzzer, or anyequivalent or suitable contrivance adapted to be sounded by airpressure; and any equivalent form or construction of valve controltherefore may be substituted in lieu of that shown.

VVh1le my automatic alarm is applicable to any type of hydro-carbonmotor, and to auto-cars and trucks generally, without interferen ce inany way with operation of the motor, 1t is adapted to effectuallyobviate all danger of overheating or burning out of bearings, etc., byreason of lack of lubrica tlon, since it will, if properly adjusted,afford ample notice of danger threatened in this respect, allowing timefor rectification by replenishment of oil, without immediate hindranceof operation of the machine.

The distinctive feature of my invention being the actuation of an airpressure alarm by means of the float in the oil chamber, it is obviousthat said alarm device might be connected with the exhaust of the motorin lieu of the air pressure tank with like results, so that I do notlimit myself in this respect. 7

What I claim as my invention and desire 5 to secure by Letters Patent,is

In a device of the character described a receptacle, a float thereincontrolled by the height of the fluid therein, an indicator, having ahand which is pivotally connected with 1 the float, an air pressure tankhaving connection with the carbureter of a motor, a oasing having directconnection wlth the connection between the earbureter and the tank,

an alarm signal in communication With said casing and a piston slidablein said casing and connected with the hand of the indicator andconstructed to control the flow of: air from said casing through thesignal device by reciprocation of the piston.

*JOHN' F. SEARING.

